The Hidden Truth About Expired Products You Must Know

14. Mothballs

Expires in: 2–3 months when used, 2 years when left unopened. Average Cost: $5–$6 per pack* Unopened mothballs maintain potency for two years, while active ones dissolve within two to three months. Effectiveness depends heavily on temperature and humidity levels.

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Mothballs on eBay After use, mothball fumes cling persistently to clothing. Air out and wash garments thoroughly to eliminate odors before wearing again.